(12)震源断層の不均質すべり分布のランダム性を考慮した地震動の統計的評価法

概要

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This paper proposed the stochastic method to evaluate the mean square response of ground motions taking account of the randomness of inhomogeneous slip distribution of the source. We computed the root mean square response of velocity ground motions (RMS velocity response) for the fault model of the 1980 Izu-Toho-Oki earthquake, using the proposed method. The RMS velocity responses were in good agreement with those calculated by the Monte Carlo simulation for the 100 samples of inhomogeneous slip distribution. The amplitudes of RMS velocity responses for the inhomogeneous slip distribution were greater than those obtained for the homogenous one. In order to predict ground motions, the method to simulate the inhomogeneous slip distribution was discussed.
一般社団法人日本建築学会の論文
1999-03-10